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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 11 |
| 3 | 101 |
| 4 | 191 |
| 5 | 16061 |
| 6 | 1748471 |
| 7 | 179868971 |
| 8 | 11027472011 |
| 9 | 13160106131 |
| 10 | 15130003151 |
| 11 | 15843234851 |
| 12 | 16420302461 |
| 13 | 16782228761 |
| 14 | 16861316861 |
| 15 | 17060706071 |
| 16 | 17374347371 |
| 17 | 18491419481 |
| 18 | 18697979681 |
| 19 | 19497279491 |
[5,11,101,191,16061,1748471,179868971,11027472011, 13160106131,15130003151,15843234851,16420302461, 16782228761,16861316861,17060706071,17374347371, 18491419481,18697979681,19497279491] |